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BOSTON MARATHON 2025

Marvin Perez

Bib: 12697•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 24%
Division (M45-49)
#0 / 2386
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:47
Rank: #10678
Start → 5K
22:47 | 7:20/mi
10K· 6.21 mi
45:14
Rank: #10162 (+516)
5K → 10K
22:27 | 7:14/mi
15K· 9.32 mi
1:07:52
Rank: #10047 (+115)
10K → 15K
22:38 | 7:17/mi
20K· 12.43 mi
1:30:13
Rank: #9497 (+550)
15K → 20K
22:21 | 7:12/mi
Half· 13.11 mi
1:35:05
Rank: #9423 (+74)
20K → Half
4:52 | 7:08/mi
25K· 15.53 mi
1:52:36
Rank: #9106 (+317)
Half → 25K
17:31 | 7:13/mi
30K· 18.64 mi
2:15:52
Rank: #8733 (+373)
25K → 30K
23:16 | 7:29/mi
20M
2:25:48
Rank: #8447 (+286)
30K → 20M
9:56 | 7:19/mi
21M
2:33:32
Rank: #8220 (+227)
20M → 21M
7:44 | 7:44/mi
35K· 21.75 mi
2:38:47
Rank: #8066 (+154)
21M → 35K
5:15 | 7:01/mi
23M
2:47:50
Rank: #7784 (+282)
35K → 23M
9:03 | 7:14/mi
24M
2:54:46
Rank: #7595 (+189)
23M → 24M
6:56 | 6:56/mi
40K· 24.85 mi
3:00:43
Rank: #7359 (+236)
24M → 40K
5:57 | 6:58/mi
25.2M
3:03:19
Rank: #7280 (+79)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:10:08
Rank: #7096 (+184)
25.2M → Finish
6:49 | 6:41/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:35:05
Pace7:15 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:35:03
Pace7:15 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0222:477:2022:47
7:20
-
10K
6.21 mi11:13:2945:147:1722:27
7:14
-0:06
15K
9.32 mi11:36:071:07:527:1722:38
7:17
+0:03
20K
12.43 mi11:58:281:30:137:1622:21
7:12
-0:05
Half
13.11 mi12:03:201:35:057:154:52
7:08
-0:04
25K
15.53 mi12:20:511:52:367:1517:31
7:13
+0:05
30K
18.64 mi12:44:072:15:527:1723:16
7:29
+0:16
20M
20.00 mi12:54:032:25:487:179:56
7:19
-0:10
21M
21.00 mi13:01:472:33:327:197:44
7:44
+0:25
35K
21.75 mi13:07:022:38:477:185:15
7:01
-0:43
23M
23.00 mi13:16:052:47:507:189:03
7:14
+0:13
24M
24.00 mi13:23:012:54:467:176:56
6:56
-0:18
40K
24.85 mi13:28:583:00:437:165:57
6:58
+0:02
25.2M
25.20 mi13:31:343:03:197:162:36
7:32
+0:34
Finish
26.22 mi13:38:233:10:087:156:49
6:41
-0:51

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:41 /mi

Average Pace

7:15 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:32

82% of race

Time at Steady Pace

33:36

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:15 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:51:0222:477:2022:47
7:20
#10678
10K
6.21 mi11:13:2945:147:1722:27
7:14
#10162
15K
9.32 mi11:36:071:07:527:1722:38
7:17
#10047
20K
12.43 mi11:58:281:30:137:1622:21
7:12
#9497
Half
13.11 mi12:03:201:35:057:154:52
7:08
#9423
25K
15.53 mi12:20:511:52:367:1517:31
7:13
#9106
30K
18.64 mi12:44:072:15:527:1723:16
7:29
#8733
20M
20.00 mi12:54:032:25:487:179:56
7:19
#8447
21M
21.00 mi13:01:472:33:327:197:44
7:44
#8220
35K
21.75 mi13:07:022:38:477:185:15
7:01
#8066
23M
23.00 mi13:16:052:47:507:189:03
7:14
#7784
24M
24.00 mi13:23:012:54:467:176:56
6:56
#7595
40K
24.85 mi13:28:583:00:437:165:57
6:58
#7359
25.2M
25.20 mi13:31:343:03:197:162:36
7:32
#7280
Finish
26.22 mi13:38:233:10:087:156:49
6:41
#7096
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi10678852085209853(Top 35%)7995(Top 50%)7995(Top 335%)
10K6.21 mi3.10 mi10162+5168247+2738247+2739687(Top 34%)7978(Top 50%)7978(Top 334%)
15K9.32 mi3.11 mi10047+1158155+928155+929853(Top 35%)7995(Top 50%)7995(Top 335%)
20K12.43 mi3.11 mi9497+5507830+3257830+3258131(Top 29%)6945(Top 43%)6945(Top 291%)
Half13.11 mi0.68 mi9423+747782+487782+488468(Top 30%)7151(Top 44%)7151(Top 300%)
25K15.53 mi2.42 mi9106+3177586+1967586+1967765(Top 27%)6612(Top 41%)6612(Top 277%)
30K18.64 mi3.11 mi8733+3737323+2637323+2637659(Top 27%)6378(Top 40%)6378(Top 267%)
20M20.00 mi1.36 mi8447+2867117+2067117+2065840(Top 21%)5083(Top 32%)5083(Top 213%)
21M21.00 mi1.00 mi8220+2276944+1736944+1735818(Top 20%)4937(Top 31%)4937(Top 207%)
35K21.75 mi0.75 mi8066+1546825+1196825+1195447(Top 19%)4687(Top 29%)4687(Top 196%)
23M23.00 mi1.25 mi7784+2826598+2276598+2275035(Top 18%)4342(Top 27%)4342(Top 182%)
24M24.00 mi1.00 mi7595+1896450+1486450+1484258(Top 15%)3739(Top 23%)3739(Top 157%)
40K24.85 mi0.85 mi7359+2366268+1826268+1823664(Top 13%)3234(Top 20%)3234(Top 136%)
25.2M25.20 mi0.35 mi7280+796208+606208+603574(Top 13%)3118(Top 19%)3118(Top 131%)
Finish26.22 mi1.02 mi7096+1846058+1506058+1503801(Top 13%)3289(Top 20%)3289(Top 138%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9853

Males

7995

M45-49

7995

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9687

Males

7978

M45-49

7978

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9853

Males

7995

M45-49

7995

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

8131

Males

6945

M45-49

6945

20K→Half

12.4 - 13.1 mi

Top 30%
×2stories
+19ft-37ft

Overall

8468

Males

7151

M45-49

7151

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7765

Males

6612

M45-49

6612

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7659

Males

6378

M45-49

6378

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

5840

Males

5083

M45-49

5083

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5818

Males

4937

M45-49

4937

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5447

Males

4687

M45-49

4687

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5035

Males

4342

M45-49

4342

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4258

Males

3739

M45-49

3739

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3664

Males

3234

M45-49

3234

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3574

Males

3118

M45-49

3118

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3801

Males

3289

M45-49

3289

Passing Analysis

Category:
Athletes Passed
3896*
Passed By
314
Net Change
+3582
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10678
5K → 10K59377+516#10678#10162
10K → 15K233118+115#10162#10047
15K → 20K560*10+550#10047#9497
20K → Half839+74#9497#9423
Half → 25K33518+317#9423#9106
25K → 30K43461+373#9106#8733
30K → 20M2860+286#8733#8447
20M → 21M2325+227#8447#8220
21M → 35K1573+154#8220#8066
35K → 23M2842+282#8066#7784
23M → 24M1901+189#7784#7595
24M → 40K2426+236#7595#7359
40K → 25.2M790+79#7359#7280
25.2M → Finish1884+184#7280#7096
TOTALS3896*314+3582

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing